Picker-stick clamp



Nov.- 6, 19.28. I 1,690,843 v J. J. SMITH PICKER STICK CLAMP Filed May 6, 1927 I I gyw ntow jairzaalwz loom picker stick equipped with a clamp em- Patented Nov. 6, 1928.

PATENT" OFFICE.

JAMES J". SMITH, OF GLENSIDE, PENNSYLVANIA.

PICKER-STIGK CLAMP.

Application filed May 6,

The present invention relates to clamping devices, and more particularly to a clamp for maintaining the desired assembled relation between apicker stick of a power loom and the support for the stick operatinglever.

Some of the objects of the present invention are to provide an improved clamping device for loom picker sticks; to provide a positive means for locating the s upport ot a picker stick lever in a fixed position; to provide an improved picker stick clamp which will give the full range of ad ustment without causing displacement of any or the parts under operating condit ons; to prov de means for clamping a device to a picker stick and also to a lever hold-up strap hanger;

and to provide other improvements as will hereinafter appear. D j

In the accompanying drawings Fig. represents a side elevation of a part of a bodying one form of the present invention; Fig. 2 represents an edge elevation oi that portion of the stick having the clamp thereon; Fig. 3 represents a section on line 3-3 of Fig. 1; Fig. 4 represents a strap supporting piece; and Fig. 5 represents a detail of one part of the clamping device.

Referring to the drawings, one form oi the present invention is shown in Fig. 1 in assembled condition upon a loom picker stick 10 which is pivotally mounted at 11 andreturned to its initial position by a spring 12. The picker stick operating lever, 13, which is controlled by the picker cams, terminates in the usual hold-up strap 14:, and is held in adjusted position upon the picker stick 10 by an adjustably mounted supportlng' hanger 15. This hanger 15 is preferably provided with notches 16 at opposite sides thereof and an axially disposed extension 17. The

notches 16 serve to seat the strap 14 as itv passes about the hanger 15. and thus holds the strap 14, with-its attached lever 13, at the desired level.

For the purpose of attaching the hanger to the picker stick 10 so that it is held rigidly against displacement, a clevis clamp 20 is provided, the body part 21 of which fits snugly about the hanger extension 17 while 192?. Serial No. 189,404

its legs 22 straddle the picker stick 10 andv terminate in threaded ends 23 projecting beyond the edge of the picker stick 10. A clamping plate 24 is apertured to fit over the ends 23 and seat flush against the edge of the picker stick 10 where it is held: fast by nutsggfi acting through locking spring washers For ensuring a rigid clamping of the hanger 15, the sides of the clevis clam 20 are respectively provided with oppositely aligned slots 27 which respectively seat tongues 28 offset from the sides of a clamping block 30. The slot-s 27 have sufficient length to allow free unrestricted movement of the block tongues 28' so thatthe block 30 can automatically adjust itself for d fferent widths of picker sticks and 'thus always take a clamping position against the eXtension'17. J a

In order to overcome any tendency of the hold-up strap 1a to swing sidewise, the end of the body of the clevis 20 is providedwith an elongated anchoring abutment 31 which is formed by stamping a portion of the material inward so that it will bite into the 7 hanger extension 17 and hold the parts against lateral relative movement.

In assembled condition the clamp 20 fits about the hanger extension 17 and also about the picker stick 10 with the block 30 interposed between thsticklO and the hanger 15. Thus when the nuts 25' are drawn u to make the plate 2% effective, there is a positive clamping of the-hanger 15, the block 30 and the picker stick 10 with no chance of one becoming loose with respect to the other.

NVhile only a' single form is shown in which this invention may be embodied, it is to be understood that the invention is not limited to any specific construction, but

might be applied to VHJI'lOLlSTOIHIS without A picker stick clamping device comprising a hanger provided with oppositely disposed notches to receive a hold up strap, an exs tension at onevend of said hanger, a clevis clamp arranged to fit about said extension and a juxtaposed picker stick, said clamp having slots formed inits legs to overlap both said stick and said extension in assem- 5 bled condition, a plate arranged between said extension and stick and having tongues respectively slidably mounted in said slots,

and clamping devices for rigidly holding said olevis clamping said stick, said extension and said plate together.

Signed at Philadelphiaeounty of Phi1adelphia, State of Pennsylvania, this 6th day of April, 1927.

JAMES J. SMITH. 

